Sisymbrium canescens var. majus Hook.
Descurainia richardsonii var. procera (Greene) Breitung
Descurainia richardsonii subsp. procera (Greene) Detling
Descurainia richardsonii (Sweet) O.E.Schulz
Descurainia richardsonii var. brevipes (Nutt.) S.L.Welsh & Reveal
Descurainia richardsonii var. alpestris (Cockerell) O.E.Schulz
Sisymbrium canescens var. brevipes Nutt.
Descurainia incana var. brevipes (Nutt.) S.L.Welsh
Descurainia incana var. major (Hook.) Dorn
Descurainia incana var. macrosperma (O.E.Schulz) Dorn
Descurainia richardsonii var. macrosperma O.E.Schulz
Sophia brevipes Rydb.
Sisymbrium canescens var. alpestre Cockerell
Sophia procera Greene
Descurainia incana subsp. procera (Greene) Kartesz & Gandhi
Sisymbrium canescens var. minus Hook.
Sisymbrium richardsonii Sweet
Descurainia richardsonii subsp. typica Detling
Sisymbrium procerum (Greene) K.Schum.
Sophia richardsonii (Sweet) Rydb.